spiralCorner(12, 4)

expected
[ [ +0, +0 ], [ 3, +0 ], [ 3, 11 ], [ +0, 11 ], [ +0, 1 ], [ 2, 1 ], [ 2, 10 ], [ 1, 10 ], [ 1, 2 ] ]
to deeply equal 
[ [ +0, +0 ], [ 3, +0 ], [ 3, 11 ], [ +0, 11 ], [ +0, 1 ], [ 2, 1 ], [ 2, 10 ], [ 1, 10 ] ]

The reference solution forgets to account for the tail going up:

0110
0101
1011 << this
1111
1111
1111
1111
1111
1111
1111
1001
0110

Random tests: it runs every random test input before every test block, even before fixed tests. It is impossible to correlate which random test corresponds to which input and user logging.

Sample tests are broken:

ReferenceError: Test is not defined
    at Context.<anonymous> (test.js:18:5)
    at process.processImmediate (node:internal/timers:471:21)

You don't explain:

• which is x and which is y coordinate in result
• how this spiral behaves

Almost a duplicate to many existing spiral katas.

WTH?

13 17
Should return []

and all random tests are expecting []

I did not get the question at all. Can someone please explain this in a simpler way ?